223 shall be written as 2 2 X 10^3 i.e.220 shall be written as 2 2 X 10^0 i.e.403 shall be written as 4 0 X 10^3 i.e.For a typical four-band code, the first two bands tell you the first two digits of the resistance, the third band tells you how many zeros to add, and the fourth band tells you the tolerance. The most common color for the sixth band is brown (100 ppm/K), which means that for every 10 change in temperature. 102 shall be written as 1 0 X 10^2 i.e. The resistance value for a resistor is generally indicated through the use of a 4 (or 3, or 5) band color code. A 6 band resistor is essentially a 5 band resistor with an extra ring that denotes the temperature coefficient or sometimes, the failure rate.Here the first two digits should be written as it is and replace third digit is the multiplier with 10 to the power third digit (10^3rd digit) and that is the value of preset in Ohms. But smaller presets will have their values mentioned in code format also. That is why the colored rings are made on resistors and standard color code is followed across globe.īigger variable resistors or presets will have their value directly printed like 10K, 100K, 4K7 (4.7K) and 3K3 (3.3K) etc. The value of variable resistors or presets are mentioned on their body as they have sufficient space as opposite to simple resistor which have small cylindrical body and limited space to print their value. Resistor color code examples 100k to 820k resistors: E12 (10) series resistors from 100 kohm to 820 kohms: 100k (100KK), 120k (120KK), 150k (150KK), 180k (180KK.

100 resistor color code